SBC MLS Head Gasket 4.165 Bore .051in

The SBC MLS Head Gasket 4.165 Bore .051in from Cometic Gaskets is designed for small-block Chevrolet builders who require reliable combustion sealing in high-performance or modified engines. This gasket is ideal for those rebuilding stock 350s, constructing stroker platforms, or assembling race-prepped mills.

Constructed from Multi-Layer Steel (MLS), this head gasket offers superior durability and repeatability compared to older composite designs. The .051-inch compressed thickness is engineered to maintain proper combustion chamber volume and ensure consistent quench clearance across the deck surface, making it suitable for various applications, including boosted and high-RPM setups.

Mechanics and engine builders favor Cometic MLS gaskets for any SBC application where head gasket failure is not an option. This gasket's 4.165-inch bore diameter matches standard small-block Chevrolet cylinder spacing, allowing it to effectively seal both water passages and oil galleries while accommodating typical head bolt patterns.